Radiator cap



K. E. STANT RADIATOR CAP May 19, .1931.

Filed Oct. 25, 1928 2 Sheets-Sheet l JIWMV KYLE ES K. E. STANT RADIATORCAP May 19, 1931.

Filed Oct. 25, 1928 2. Sheets-Sheet 2 73mm KYLE E STAN T,

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Patented May 19, 1931 UNITED STATES PATENT OFFICE KYLE E. STA-NT, OFCONNERSVILLE, INDIANA, ASBIGNOR TO THE STANT MACHINE COMPANY, OFCONNEBSVILLE, INDIANA, A CORPORATION OF INDIANA RADIATOR CAP Applicationfiled October 25, 1928. Serial No. 315,031.

My invention relates to closures for receptacles and particularly toradiator caps for that purpose.

It is the object of my invention to provide a radiator cap that carriesa non-rotatable, non-yielding, locking device, and a rotatable,flexible, sealing device, or a non-rotatable, flexible sealin device.

It is a furt or object to provide in such a combination a sealing devicein which there is a combination of a relatively compressible sealingmedium expansible in the presence of the locking parts of both yieldingand sealing nature.

Referring to the drawlngs,

Figure 1 is a vertical section through the filler spout and radiator cap1n locked position.

Figure 2 is a bottom plan v1ew thereof.

Figure 3 is a detailed plan v1ew of the locking cups carried on theradiator cap.

Figure 4 is a side elevation thereof.

Figure 5 is a detailed section through the method of attachment of thelocking cup sealing member and yielding backing therefor, with theradiator cap.

Figure 6 is a bottom plan v1ew of the filler spout without the radiatorcap.

Figure 7 is a section through the filler spout without the filler cap.

Figure 8 is a perspective of the 1ns1de of-the radiator cap without theyielding, sealing and locking members.

Referring to the drawings in detail, 1 1s a filler spout of a radiatoror the spout of any receptacle. It is provided with an lnwardlyextending, upward, marginal shoulder 2 which turns inwardly anddownwardly as at 3.

This spout has depending from these spaced, inwardly depending shoulders3 stop lugs 4. The lower edges of these depending members 3 are providedwith cam surfaces 5. Engaging with these cam surfaces 5 and the stoplugs 4 are non-yielding, laterally extending, locking fingers 6extending outwardly from the lower margin of a locking cup 7 which isprovided with a square aperture 8 1n the center for mounting upon thesquare shoulder 9 of the radiator cap 10. This shoulder is mounted upona depending finger 11 of the radiator cap.

The cup is retained in position either by having the end 12 of thedepending finger 11 of the radiator cap 10 turned over and swaged in thenature of a rivet or a screw 13 may be employed which is threaded as at14 in the'depending member 11 so that the degree of clamping the cupagainst the seating washer 15 and its yielding backing of brass 16 maybeadjusted.

The washer 15 and the brass disc 16 are rotatably mounted upon anannular shoulder 17 on the lower end of the depending member 11, so thatthey can freely rotate thereon if the adjustment of the clamping screw13 permits. A lock washer 18 is provided in association with this screwfor locking it in position.

The inner portion of the radiator cap 10 is provided with stop lugs 19for engaging with the upper side of the yielding brass plate 16 ifdesired.

The engagement of lugs 19 with the top of plate 16 prevents said platefrom becoming distorted beyond a predetermined plane or shape.Sufiicient space must be provided however between the plate and the lugsso that vertical movement of the plate will not be arrested to a degreethat Would cause interference with complete rotation of the cap intolocking engagement with the. spout.

While I prefer to make the sealing member of fiber which expands in thepresence of hot water such as is found in radiators, yet any other formof sealing member may be employed; Likewise the brass disc 16 may be ofany thin, yielding material. It is not necessary for the yielding memberand the sealin member to both rotate, but it is found desira le.

I have found it very advantageous however to have a non-yieldin lockingmechanism consisting of the locking fingers 6 and the filler spout camlock with a separate yielding and sealing means for maintaming theparts, one in engagement with the other, because the use of heavy partsfor locking permits of a very effective lock of long life, incombination with a more effective seal which can be made of thin,yielding and expansible material, thereby avoiding the disadvantage ofsome types of construction in which the lockin means is also yieldingwhich defeats the e ficiency and durability of a positive look.

It will be understood that I desire to comprehend within my inventionall the modifications necessary to adapt it to varying conditions anduses. 1

Having thus fully described my invention, what I claim as new and desireto protect by Letters Patent is:

1. In a closure for receptacles, a filler spout having locking members,a radiator cap having a depending, non-rotatable, cooperating lockingmember and locking fingers thereon, a sealing means for sealing the capto the filler spout, and yielding means backing the said sealing meansin engagement with the filler spout and the radiator cap, said yieldingmeans being rotatably mounted on the radiator cap, and portions ofsaidyielding means being spaced from the cap during rotation of said cap upto its locked position.

2. In a closure for receptacles, spout having locking members, aradiator cap having a depending, non-rotatable, cooperating lockingmember, a sealing meansfor sealing the cap to the filler spout, yieldingmeans for holding the said sealing means in engagement with the fillerspout and the radiator cap, said yielding means being r0- tatablymounted on the radiator cap, and portions of said yielding means beingspaced from the cap during rotation of said cap up to its lockedposition.

3. In a closure for receptacles, a filler spout having locking members,a radiator cap having adepending, non-rotatable, cooperating lockingmember, a sealing means mounted on said radiator cap adapted for sealingthe filler spout, yielding means for holding the said sealing means inengagement with the filler spout and the radiator cap, said lastmentioned sealing and yieldin means being rotatably mounted on the raiator cap, and portions of said yielding means being spaced from the capduring rotation of said cap up to its locked position, and stops on thefiller spout for cooperating with the non-rotating locking means on theradiator cap for positioning the radiator cap when in locked position.

4. In a mechanism for a closure of a recepa fillertacle,-a filler spout,a non-yielding locking means on said filler spout, a cap, anon-yielding'locking means on said cap, and yielding means thereon formaintaining the nonyielding locking means in engagement and closing theopening in the filler spout, said yielding means being rotatable on theradiator cap and the locking means carried by the radiator capnon-rotatable thereon and portions of said yielding means being spacedirom the cap when said yielding means is in engagement with said spoutduring rotation of said cap up to its locked position.

5. In a mechanism for the closure of'a receptacle, a non-yieldinglocking means on a filler spout, a non-yieldlng locking means on aradiator cap, a radiator cap, yielding means thereon for maintaining thenon-yielding locking means in engagement with one another, sa1d yieldingmeans being rotatable on the radiator cap and the locking means carriedby the radiator cap non-rotatable thereon, and means for adjusting thedegree of rotation of the yielding means on the radiator cap.

6. In a mechanism for the closure of a'receptacle, a non-yieldinglocking means on a filler spout, a non-yielding locking means on aradiator cap, a radiator cap, yielding means thereon for maintaining thenon-yielding locking means in engagement with one an other, saidyielding means being rotatable on the radiator cap and the locking meanscarried by the radiator cap non-rotatable thereon, and means foradjusting the degree of rotation of the yielding means on the radiatorcap and of detachably retaining the radiator cap locking means thereon.

7 In combination in a radiator cap of a cap body, a depending centralmember havlng a yielding member shoulder with an annular throat, and anarrower square throat ad acent thereto with a shoulder of smallerdiameter than the first shoulder for receivmg a locking member, ayielding means on the first shoulder rotatably of the cap, a nonyieldinglocking member mounted on the second shoulder arranged to prevent theremoval of the yielding means from its shoulder and the clamp throat,and means for retaming the locking means on the depending member of theradiator cap, said last ment1oned means being adjustable to adjust theclamping of the yielding means between thelocking means and the firstshoulder on the depending member of the radiator cap.

8. In combination in a radiator cap of a capbody, adepending centralmember having a yielding member shoulder withan annular throat, and anarrower square throat adjacent thereto with a shoulder of smallerdiameter than thefirstshoulder for receivin a locking member, a yieldingmeans on the first shoulder rotatably of the cap, a non-yielding lockmgmember mounted on the second shoulder arranged to prevent the removal ofthe yieldthe cap when said yielding means is in ening means from itsshoulder and the clamp gagement with the filler spout dur ng rotathroat,means for retaining the locking means tion of said cap up to its lockedpos tion.

on the depending member of the radiator cap, In testimony whereof, Iaflix my signature. said last mentioned means being adjustable KYLE E.STANT. to adjust the clamping of the yielding means between the lockingmeans and the first shoulder on the depending member of the radiatorcap, and an expansible washer mounted between the yielding means and thelocking means, adapted to be yieldingly reinforced by the yieldingmeans.

9. In combination, a filler spout having inwardly and downwardlydisposed spaced cams, positioning shoulders associated therewith, aradiator cap, a depending member on the interior thereof, anon-yielding, rigid, locking member extending laterally therefrom,adapted to engage with said cams and said stops, shoulders on said capto prevent the rotation of the locking fingers thereon, yielding meansinterposed between the top of the filler spout and the radiator cap forclosing the opening between the radiator cap and the filler spout, andan intermediate washer between said means and the filler spout adaptedto expand in the presence of heat and moisture, and portions of saidyielding means being spaced from the cap during rotation of said cap upto its locked position.

10. In combination, a filler spout havin inwardly and downwardlydisposed spaced cams, positioning shoulders associated therewith, aradiator cap, a depending member on the interior thereof, anon-yielding, locking member having fingers extending laterallytherefrom, adapted to engage with said cams and said stops, cams on saidcap to prevent the rotation of the locking fingers thereon, yieldingmeans inter osed between the top of the filler spout and the radiatorcap for closing the opening between the radiator cap and the fillerspout, and an intermediate washer between said means and the fillerspout adapted to expand in the presence of heat and moisture, saidyielding means and washer being so arranged as to freely rotate upon theradiator cap, and portions of said yielding means being spaced from thecap when said washer is in engagement with said spout during rotation ofsaid cap up to its locked position.

11. In a closure for receptacles, a filler spout having locking members,a cap having a depending rigid cooperating locking member thereon and aresilient closing and retaining plate having resilient portions spacedfrom the cap when said plate is in engagement with the filler 5 outduring rotation of said cap up to its 100 red position.

12. In a closure for receptacles, a filler spout having locking members,a cap having a depending cooperating rigid locking member and a yieldingclosing and retaining means having yielding portions spaced from

